Using classic Outlook for Windows in educational settings
To keep the school calendar synchronized in Outlook, add it as a subscribed web calendar instead of importing the file.
- Sign in to Outlook on the web.
- Open Calendar from the navigation pane.
- Select Add calendar.
- Select Subscribe from web.
- Paste the
.icscalendar feed address. - Select Import and Save.
Important difference:
- Subscribe from web keeps the calendar updated automatically.
- Upload from file only imports a one-time snapshot and does not refresh.
Update timing:
- After subscribing, changes to the school calendar can take more than 24 hours to appear in Outlook on the web.
- Another Microsoft article states updates should happen approximately every 6 hours, but can still take more than 24 hours.
If using classic Outlook for Windows, subscribing through Outlook on the web is the supported path in the provided guidance for getting an internet calendar to stay synced.